CN218640340U - Ultrahigh-temperature hot end and 3D printing device - Google Patents
Ultrahigh-temperature hot end and 3D printing device Download PDFInfo
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- CN218640340U CN218640340U CN202222446267.6U CN202222446267U CN218640340U CN 218640340 U CN218640340 U CN 218640340U CN 202222446267 U CN202222446267 U CN 202222446267U CN 218640340 U CN218640340 U CN 218640340U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P10/00—Technologies related to metal processing
- Y02P10/25—Process efficiency
Abstract
The utility model discloses an ultra-high temperature hot end and 3D printing device, which comprises a nozzle and a plurality of heating sleeves, wherein the heating sleeves are sequentially arranged along the axial direction of the nozzle; the heating sleeve comprises a heat insulation layer, an electric heating coil and a temperature sensor, the heat insulation layer is sleeved on the nozzle, and the electric heating coil and the temperature sensor are arranged between the heat insulation layer and the nozzle. The ultra-high temperature hot end has a simple structure and is convenient to produce and process; the electric heating coil is used for heating the nozzle; the heat-insulating layer can reduce heat loss and ensure the stable heating temperature of the material; the heating sleeves sleeved on the nozzle can perform segmented incremental heating on the nozzle, and can heat the extruded material to a higher temperature on the premise of not causing adverse effect on the extrusion process; the temperature sensors on each heating jacket enable the user to monitor the different temperatures of different portions of the nozzle in real time to facilitate more accurate control of the temperature of the nozzle.
Description
Technical Field
The utility model relates to a 3D printing apparatus technical field especially relates to an ultra-temperature hot junction and 3D printing device.
Background
The 3D printing is an additive manufacturing technology, namely, particles made of plastics and the like are heated, melted and extruded to build a 3D model layer by layer, a single heating assembly is adopted outside a hot end nozzle of a 3D device at the present stage, segmented incremental heating cannot be realized, when the material is required to be applied to a higher temperature, the material in one end, connected with a feeding part, of the nozzle is melted due to too high temperature, an extruding mechanism is easy to slip to influence material conveying, and accurate printing is difficult.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the technical problem that: the utility model provides a can each position of accurate control nozzle heating temperature's super high temperature hot junction and have 3D printing device of this super high temperature hot junction.
In order to solve the technical problem, the utility model discloses a technical scheme one is: the ultrahigh-temperature hot end comprises a nozzle and a plurality of heating sleeves, wherein the heating sleeves are sequentially arranged along the axial direction of the nozzle; the heating sleeve comprises a heat insulation layer, an electric heating coil and a temperature sensor, the heat insulation layer is sleeved on the nozzle, and the electric heating coil and the temperature sensor are arranged between the heat insulation layer and the nozzle.
Furthermore, the outer peripheral surface of the nozzle is provided with a mounting groove for accommodating the temperature sensor.
Furthermore, the number of the electric heating coils is multiple, and at least one part of the electric heating coil is positioned outside the mounting groove.
Furthermore, one end of the electric heating coil and one end of the temperature sensor are respectively connected with an electric wire, and a wire outlet hole for the electric wire to extend out is formed in the heat insulation layer.
Furthermore, the number of the wire outlet holes is at least two.
Furthermore, the edge of the wire outlet hole is chamfered.
Furthermore, the heat-insulating layer is made of ceramic fiber.
Further, the temperature sensor is a platinum rhodium thermocouple temperature sensor.
In order to solve the technical problem, the utility model discloses a technical scheme two be: 3D printing device, including foretell superhigh temperature hot junction.
The beneficial effects of the utility model reside in that: the ultra-high temperature hot end has a simple structure and is convenient to produce and process; the electric heating coil is used for heating the nozzle; the heat-insulating layer can reduce heat loss and ensure the stable heating temperature of the material; the heating sleeves sleeved on the nozzle can perform segmented incremental heating on the nozzle, and can heat the extruded material to a higher temperature on the premise of not causing adverse effect on the extrusion process; the temperature sensors on each heating jacket enable the user to monitor the different temperatures of different portions of the nozzle in real time to facilitate more accurate control of the temperature of the nozzle.
Drawings
Fig. 1 is a schematic view of the overall structure of an ultra-high temperature hot end according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of the ultra-high temperature hot end portion of the first embodiment of the present invention.
Description of the reference symbols:
1. a nozzle; 11. mounting grooves;
2. heating a jacket; 21. a heat-insulating layer; 211. a wire outlet hole; 22. an electric heating coil; 3. a temperature sensor;
4. an electric wire.
Detailed Description
In order to explain the technical content, the objects and the effects of the present invention in detail, the following description is made with reference to the accompanying drawings in combination with the embodiments.
Referring to fig. 1 and 2, the ultra-high temperature hot end comprises a nozzle 1 and a plurality of heating sleeves 2, wherein the heating sleeves 2 are sequentially arranged along the axial direction of the nozzle 1; the heating jacket 2 comprises a heat insulation layer 21, an electric heating coil 22 and a temperature sensor 3, the heat insulation layer 21 is sleeved on the nozzle 1, and the electric heating coil 22 and the temperature sensor 3 are arranged between the heat insulation layer 21 and the nozzle 1.
From the above description, the beneficial effects of the present invention are: the ultra-high temperature hot end has a simple structure and is convenient to produce and process; the electric heating coil 22 is used for heating the nozzle 1; the heat-insulating layer 21 can reduce heat loss and ensure the stable heating temperature of the material; the heating sleeves 2 sleeved on the nozzle 1 can perform segmented incremental heating on the nozzle 1, and can heat the extruded material to a higher temperature on the premise of not causing adverse effect on the extrusion process; the temperature sensor 3 on each heating jacket 2 enables the user to monitor the different temperatures of different parts of the nozzle 1 in real time, in order to control the temperature of the nozzle 1 more accurately.
Further, an installation groove 11 for accommodating the temperature sensor 3 is formed on the outer circumferential surface of the nozzle 1.
As can be seen from the above description, the temperature sensor 3 is disposed in the mounting groove 11 to reduce the gap between the nozzle 1 and the insulating layer 21, thereby reducing the external dimensions of the ultra-high temperature hot end and meeting the trend of miniaturization of products.
Furthermore, the number of the electric heating coil 22 is multiple, and at least one part of the electric heating coil 22 is located outside the mounting groove 11.
From the above description, the coil can be spacing to the temperature sensor 3 after the installation, thereby prevents that temperature sensor 3 from moving towards the direction of keeping away from nozzle 1 and influencing the accuracy of temperature monitoring result.
Furthermore, one end of the electric heating coil 22 and one end of the temperature sensor 3 are respectively connected with an electric wire 4, and the heat insulating layer 21 is provided with a wire outlet 211 for the electric wire 4 to extend out.
As is apparent from the above description, the electrothermal coil 22 and the temperature sensor 3 may be connected to the external device electric wire 4 through the electric wire 4, respectively.
Further, the number of the outlet holes 211 is at least two.
As can be seen from the above description, the electric wires 4 of the electrothermal coil 22 and the temperature sensor 3 can respectively pass through one wire outlet 211, which is beneficial to distinguish the type of the electric wires 4 from the outside.
Furthermore, the edge of the wire outlet 211 is chamfered.
As can be seen from the above description, the chamfer structure can prevent the sharp edge of the wire outlet 211 from scratching the insulation layer of the wire 4, which is beneficial to improving the service life of the heating jacket 2.
Further, the insulating layer 21 is made of ceramic fiber.
As can be seen from the above description, the heat-insulating layer 21 has high temperature resistance, good thermal stability and low thermal conductivity, and can effectively reduce heat loss.
Further, the temperature sensor 3 is a platinum rhodium thermocouple temperature sensor.
As can be seen from the above description, the thermoelectric performance of the temperature sensor 3 is stable and can be operated normally at a higher temperature.
3D printing device, including foretell superhigh temperature hot junction.
As can be seen from the above description, the 3D printing apparatus can ensure accurate printing while heating a printing material to a higher temperature.
Example one
Referring to fig. 1 and fig. 2, a first embodiment of the present invention is: the ultrahigh-temperature hot end is applied to various 3D printing devices to heat and melt materials to be extruded.
The ultrahigh-temperature hot end comprises a nozzle 1 and a plurality of heating sleeves 2, and the heating sleeves 2 are sequentially arranged along the axial direction of the nozzle 1; the heating jacket 2 comprises a heat insulation layer 21, an electric heating coil 22 and a temperature sensor 3, the heat insulation layer 21 is sleeved on the nozzle 1, and the electric heating coil 22 and the temperature sensor 3 are arranged between the heat insulation layer 21 and the nozzle 1. Specifically, the heat insulating layer 21, the electric heating coil 22 and the temperature sensor 3 are arranged in one-to-one correspondence. The heat insulation layer 21 is cylindrical, and the heat insulation layer 21 is preferably made of ceramic fiber; the electric heating coil 22 is wound on the periphery of the nozzle 1; the temperature sensor 3 is preferably a platinum rhodium thermocouple temperature sensor. In the present embodiment, the number of the heating jackets 2 is four, and in other embodiments, the number of the heating jackets 2 may be two, three, or more. It is easy to understand that when the material near the feeding position in the nozzle 1 is melted due to over-high temperature, the screw of the extrusion assembly is easy to slip to affect the material transportation, so that a plurality of heating sleeves 2 are arranged to heat the material in the nozzle 1 in a segmented manner, and the material is gradually heated to a higher temperature, so as to avoid adverse effect on the extrusion process.
Preferably, an installation groove 11 for accommodating the temperature sensor 3 is formed on the outer circumferential surface of the nozzle 1. It is easy to understand that the temperature sensor 3 is arranged in the mounting groove 11 of the nozzle 1, so that the inner diameter of the heat-insulating layer 21 can be designed to be larger, the external dimension of the ultrahigh-temperature hot end is reduced, and the heat of the heat-insulating layer 21 is more close to the surface of the nozzle 1, so that the heat is less prone to loss; further, since the distance between the temperature sensor 3 and the inner circumferential surface of the nozzle 1 is reduced, the difference between the temperature measured by the temperature sensor 3 and the temperature of the material in the nozzle 1 is smaller.
Preferably, the number of the electric heating coil 22 is multiple turns, and at least one partial area of the electric heating coil 22 is located outside the mounting groove 11. It will be readily understood that when the temperature sensor 3 is moved out of the mounting groove 11 by an external force, it will be blocked by the electric heating coil 22.
Preferably, one end of each of the electric heating coil 22 and the temperature sensor 3 is connected to an electric wire 4, the heat insulating layer 21 is provided with at least two wire outlets 211 for the electric wire 4 to extend out, and the two wire outlets 211 are arranged corresponding to the electric heating coil 22 and the temperature sensor 3 respectively. The axial directions of the two outlet holes 211 are perpendicular to the axial direction of the insulating layer 21, and the inner circumferential surface of one of the outlet holes 211 is approximately tangent to the inner circumferential surface of the insulating layer 21, so that the electric wire 4 in the outlet hole 211 is tangent to the circumferential direction of the coil.
Preferably, in order to prevent the edge of the wire outlet hole 211 from scratching the insulating layer of the electric wire 4, the edge of the wire outlet hole 211 is chamfered.
In conclusion, the ultra-high temperature hot end provided by the utility model has simple structure and is convenient for production and processing; the electric heating coil is used for heating the nozzle; the heat-insulating layer can reduce heat loss and ensure the stable heating temperature of the material; the heating sleeves sleeved on the nozzle can perform segmented incremental heating on the nozzle, and can heat the extruded material to a higher temperature on the premise of not causing adverse effect on the extrusion process; the temperature sensors on each heating jacket enable the user to monitor the different temperatures of different portions of the nozzle in real time to facilitate more accurate control of the temperature of the nozzle. The coil can be spacing to the temperature sensor after the installation, thereby prevents that temperature sensor from moving towards the direction of keeping away from the nozzle and influencing the accuracy of temperature monitoring result. The chamfer angle of the edge of the wire outlet can prevent the sharp edge of the wire outlet from scratching the insulating layer of the wire, thereby being beneficial to improving the service life of the heating sleeve.
The above mentioned is only the embodiment of the present invention, and not the limitation of the patent scope of the present invention, all the equivalent transformations made by the contents of the specification and the drawings, or the direct or indirect application in the related technical field, are included in the patent protection scope of the present invention.
Claims (9)
1. An ultra-high temperature hot end which is characterized in that: the heating device comprises a nozzle and a plurality of heating sleeves, wherein the heating sleeves are sequentially arranged along the axial direction of the nozzle; the heating sleeve comprises a heat insulation layer, an electric heating coil and a temperature sensor, the heat insulation layer is sleeved on the nozzle, and the electric heating coil and the temperature sensor are arranged between the heat insulation layer and the nozzle.
2. The ultra-high temperature hot end according to claim 1, wherein: and the peripheral surface of the nozzle is provided with a mounting groove for accommodating the temperature sensor.
3. The ultra-high temperature hot end according to claim 2, wherein: the number of the electric heating coils is multiple, and at least one part of the electric heating coil is positioned outside the mounting groove.
4. The ultra-high temperature hot end according to claim 1, wherein: one end of the electric heating coil and one end of the temperature sensor are respectively connected with an electric wire, and the heat insulation layer is provided with a wire outlet through which the electric wire extends.
5. The ultra-high temperature hot end according to claim 4, wherein: the number of the wire outlet holes is at least two.
6. The ultra-high temperature hot end according to claim 4, wherein: the edge of the wire outlet hole is chamfered.
7. The ultra-high temperature hot end according to claim 1, wherein: the heat-insulating layer is made of ceramic fiber materials.
8. The ultra-high temperature hot end according to claim 1, wherein: the temperature sensor is a platinum rhodium thermocouple temperature sensor.
9.3D printing device, its characterized in that: comprising the hyperthermal hot end of any one of claims 1 to 8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222446267.6U CN218640340U (en) | 2022-09-15 | 2022-09-15 | Ultrahigh-temperature hot end and 3D printing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222446267.6U CN218640340U (en) | 2022-09-15 | 2022-09-15 | Ultrahigh-temperature hot end and 3D printing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218640340U true CN218640340U (en) | 2023-03-17 |
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ID=85492404
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222446267.6U Active CN218640340U (en) | 2022-09-15 | 2022-09-15 | Ultrahigh-temperature hot end and 3D printing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218640340U (en) |
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2022
- 2022-09-15 CN CN202222446267.6U patent/CN218640340U/en active Active
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